In the case of a large buttock and a small buttock, the following methods can be used to correct the situation: 1. Such patients should go to the orthopedic department as soon as possible to clarify the cause of the symptoms and then deal with them, for example, there may be a congenital dislocation of the hip joint on one side, or a hip muscle contracture on one side or caused by poor posture. 2. If, after consultation, it is clear that one side of the hip joint is dislocated, surgical correction should be performed as soon as possible, such as acetabular reconstruction, hip joint repositioning or hip joint replacement surgery. 3, if, after consultation, it is clear that one side of the hip muscle contracture exists, treatment such as massage can be done here in mild cases, while in severe cases, the contracted muscles need to be cut off and the corresponding functional exercise should be done after surgery. 4, if, after consultation, it is found that it is caused by bad posture, it is necessary to stop. If the posture is found to be bad, stop the bad posture, such as the plank, and correct it by jogging on a flat road afterwards.